铝纳米颗粒的室温液相合成

Room-temperature liquid-phase synthesis of aluminium nanoparticles.

作者信息

Riegsinger Sven, Popescu Radian, Gerthsen Dagmar, Feldmann Claus

机构信息

Institut für Anorganische Chemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany.

Laboratorium für Elektronenmikroskopie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 7, 76131 Karlsruhe, Germany.

出版信息

Chem Commun (Camb). 2022 Jul 5;58(54):7499-7502. doi: 10.1039/d2cc01846b.

DOI:10.1039/d2cc01846b

PMID:35604276

Abstract

Aluminium nanoparticles, Al(0), are obtained liquid-phase synthesis at 25 °C. Accordingly, AlBr is reduced by lithium naphthalenide ([LiNaph]) in toluene in the presence of ,,','-tetramethylethylenediamine (TMEDA). The Al(0) nanoparticles are small (5.6 ± 1.5 nm) and highly crystalline. A light yellow colour and absorption at 250-350 nm are related to the plasmon-resonance absorption. Due to TMEDA functionalization, the Al(0) nanoparticles are colloidally and chemically stable, but show high reactivity after TMEDA removal.

摘要

铝纳米颗粒（Al(0)）是在25℃下通过液相合成获得的。因此，在甲苯中，在N,N,N',N'-四甲基乙二胺（TMEDA）存在的情况下，溴化铝被萘锂（[LiNaph]）还原。Al(0)纳米颗粒很小（5.6±1.5纳米）且高度结晶。浅黄色以及在250 - 350纳米处的吸收与等离子体共振吸收有关。由于TMEDA功能化，Al(0)纳米颗粒在胶体和化学性质上是稳定的，但在去除TMEDA后显示出高反应性。